Work-support.



l. R. BECKETT.

WORK SUPPORT.

APPLICATION FILED 1,111.13, 1917. 1,292,235. y Patented 1311.211919.

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'Patented Jan, 21, 1919.

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fill.y EKVT, 3? SOMERVILLE, MASSACHUSETTS, ASSIGNO '10 BOSTON SGAL &(10.,.05 SOUTH BSTON, MASSACHUSETTS.

' tpecicatiou of Letters Patent.

.Patented Jan. 21, 1919.

.segnalata site .mutiny is, 1917, serial No. maite.

Somerville, 1n the county of Middlesex and "Stateot llassachusetts, haveinvented cer- '.tain new and useful lmprovements in 1Workn' Supports, ofwhichthe following is a specilication j ;A T l vThis' invention relatesto 'work shpporting gard to certain more specie features thereof towork-holdersof a character 4having o. capability of substantiallyuniversal adjustment. i.

@ne .ofhe objects ofthe present inven- 'ls tion iste/provide ya deviceof the nature above speciied which shall be inexpensive,simpladu'rableand compact.,

' Anotherr'nhgect-otthei ention lies in the protdsiorfef va universalworlr holder which. and quickly operated byl relatively unskilledworkmen.

` .Still another object comprises a readily adjustable work-holderoll'ering a possibility of adjustment into a maximum numsf ber ofdid'crent posit-ions so that in many instances it will not be necessaryto adjust .the work with respect to its' holding means,

together with means whereby the worlr may v be 'quickly adjusted withrespectthereto 36 when necessary.

:the'r objects will he in part obvious and in part pointed outhereinafter.

The invent-ion accordingly lconsists in the various -teat-ures ofconstruction,

which will be exemplified by the construe tion hereinafter set 4liorththe application of which will be indicated in the following claims.

ist) ln 'the'accompanying drawings wherein is to 5 is e* view taken onthe line, 5 -5 of ,j

Fig. l. I f

, Reterringmow morepnrticularly to the drawings wherein similarreference chanacn combina- 85 tions of elements and arrangements ofparts and the scope of .on the semi-cylindrical ters. refer to similarpartsthrpughout thev several views, there is indicated at 1v a base 55having a circular top surface, 2 with a. central vertically extendinghub 3 .and an annular groove 4t of T shape in crosssection. The base hasd iametrically oppositely'dis posed websv 5 each provided with boltslots 60 61 and fixture keys 7 for securing the base to a work supporttable (not shown). An intermediate member 8 is pivotally` mounted on thebase 1 as by receiving the hub` 3 in a short cylindrical b ore 9. This65 men ber also receives T bolts 10 upwardly projecting from thebasethrough boltholes heads of said bolts rest in the enlargement of theannular groove l and may be drawn into engagement by the secur- 7 0 ingnuts 12. The intermediate member 8 has an arcuateupperportion 13 toserve as a support for a cradle 14 adapted for rocking movement thereonabout a horizontal axis. Bolts 15 project upwardly from the 75 member 8engaging the cradle through a T- shaped groove 16 therein and areequipped with T nuts 17 whereby theparts are secured Ain differentadjusted positions.

The cradle 14 has an elongated arcuate 80 portion 18 and a web`19. Theportion 18 serving as a support and bearing for a magnetic worlnholderQ0 while within the web is journaled a screw shaft Z1 tor purposes whichwill be set forth hereinafter. S5 The lead Wires for the coils of themagnetic portion of the worlcholder are shown at 22 and the holder isgrooved T shape as indicated at 23 for receiving T locking blocks ornuts Q4. Bolts 24 engage these T 90 blocks so that Athe holder may beadjusted and secured in position relatively to the cradle and retaininggibs 24 fixed to said cradle serve to prevent the holder from fall ingaway when the bolts 24e arellooscned yet 95 permit an easy slidingmovement of the holder on saidr cradle. The adjustment be tween theparts 14 and '20 may be through the instrumentality of a rack 25p'rovidcdd ,T

base of the holder, vl10i) and a screw shaft 21 which is adapted to beoperated by the handle 26. `When desired to effect the adjustment by,this means, a cam 27 pivotally mounted within ahollowed portion of theweb 19, is actuated by a handle 10e 28 to move the screw shaft intooperative position. A spring 29 is adapted to restore the shaft to anormal position of disengagement of the screw or worm with the rack ofthe work-holder when the cam is moved to release.

The retaining gibsand hand worm ,opf erating,r device render the presentinvention extremely convenient in operation and accurate. The structureo'hviates the possibility of dirt or chips lodging between theWork-holder and its supporting means.

` `When the worm is in engaged position the' locking bolts may be movedto unlocking position at will and the holder will be maintained iii itsthen position 'of adjustment provided oi course the. device is not beingsubjected to undue vibration. As the handle 26 is moved toiadjustthe'liolder through thegcared connection comprising the rack and thescrew or worm Q1, the retaining gibs determine the amount of separationbetween the Worli holder and its support. No matter what possible angleis given the table of the holder the latter may not fall away from itssupport and chips or dirt are prevented from lodging between the 'parts`In these particulars and others the present invention is,A animprovement on that shown and described by me in my Patent N o.1,155,987'.

It will be noted that the Worlcholder is movable about a horizontal axiswhich is at righ-t angles to the horizontal axis about which the cradlemay Ibe rocked and that the' at 30 for vthe assistnce of the operator inl positioning the parts. 4

As many changes mightv Ibe made in the above construction and as many aparently Widely diferent embodiments of t e inven tion might be madewithoutdeparting-from the scope as dened by the appended claims:

thereof, -it is intended *that all matter .containedin the foregoingdescription or shown in the acccinjmnyingJ draw-ings shall beinterpreted as illustrative and' not in a limiting Having describedtheinventin what I desire to secure by Letters Patent is:

1.111 a device oi? the y,character described, in combnato,"a base,acradle supported l) Saidlbaseand having a seatvof substantiallyelongated quadrantal form, means whereby said cradle maybe adjustedaround avertical axis-relatively to said, base, a

incense in positions of di erent relative adjustment,

and means comprising a manually operable;

`ieed' device adapted to cooperate with said work-holder to eileo't itsadjustment.

.2.' In a device of the character described, in combination, a base, acradle supported by said base land having a seat of substantiallyelongated quadrantal form, means whereby said cradle may be adjustedaround ya vertical axis relatively to said base, a work-holder fitted tothe seat of said cradle for adjustment about a horizont-al axis,retainingir members for holding y the woi'liholder against its seatparticularly during adjustment, means itor4 clamping the saidadjustabler parts in positions, of dillerent relative adjustment, andmeans comprising a manually operable .feed device adapted to coperatewith said worloliolder to effect its adjustment.

3. In a device of the character described,

in combination a base a cradle su i ortcdv i a i lli) by .said base andhaving aseat of substan# tially elongated quadrantal form, means wherebysaid cradle may 'be adjusted around a vertical -axis relatively tosaidvhase, a work-holder fitted to the seat of said cradle foradjustment about' e horizontal axis, retaining members secured to thecradle and engaging the Work-holder for holding the work -holder againstits seat particularly duringadjustment, means for clamping the loo Vsaidadjustable parts in positions of different relative adjustment, andmeans comprising a manually operable feed device adapted to.

coperate with said. workfholder to effect its adjustment.

4. In a device ofl the character described,

in combination, a base, a cradle supportedl by said base and having aseat oi substan tiaflly elongated quadrantal form, means whereby saidcradle may be adjusted around a vertical axis relatively to said base, asemic lindriciil elongated Workholder fitted to t e seat of solid cradlefor adjustment about a horizontal axis, means for clamping the saidladjustable parts in positions of dili`eient relative zuljustnient,A andmeans comprising a manually operable feed device to'eil'ect itsadjustment.

5. In a device of the character described -in combination, a base, a.cradle supgzirted adapted to coperate with said workhc l ler b ysaidbase and having a seat of subatantially elongated quadrantal forni,means whereby'said cradle may be ad usted around a vertical axisrelatively to sin base, a soun cylindrical elongated work-holder fittedto t e seat of said cradle for adjustment about. a horizontal axis,retaining members secured to the cradle and engaging the woi'r l ciderfor holding the work-holder against :te seat lil@ ' web portion, a*lvoil-cholcler 'having` an arcu j velles to the :uljusl'meutci saidcradle particularly during adjustment, means for 1neans comprising aclamping the said adjustable parts in posh tions ot different relativeadjustment, and means comprising a manually operable feed device adaptedto cooperate with said Work holder to effect its adjustment.

(l. ln a device of the character described, in combination, a base, acradle supported therefrom having an elongated arcuate seat portion Ianda substantially central vertical web portion, a worm shaft journaled insaid,

ate base fitted to the seat ot' said cradle for adjustment relativelythereto about a horizontal axis, and an arcuate work-holder adapted tocooperate with the worm of said snai" effected. j

"l". In a device ofthe character described, in combination, a base, acradle supported therefrom having an elongated arcuate seat portion webportion, a worm shat't joarnaled in said we portion, a Worleholderhaving an arcuate base fitted' to the seat of said cradle for adjustmentrelatively thereto about a hori- 'fzontal axis, means Ytor clamping` theworkholder to the cradle in different. adjusted positions, and anarcuate rack on said worle holder adapted to cooperate with the worm et'said shaft whereby adjustment is ell'ccted, in a device of the characterdescribed, in combination, a, substantially tlait base 'member adaptedto be applied to the Worktable oi" a machine, said base having a shortupwartflly-extending pivot post, a cradle supportinrg member mountedupon said base and adapted tor pivotal adjustment about said post,locking means 'for securing;r said cradle supporting; member inditlerent n( justcd positions relatively to said base, an arcuate scaton said cradle supporting member, a cradle adjustably litted to saidseat and har ing itscll a seat of elongated quadranl-al torni, aworlrliolder adjnstably littcd to the cradle seat, and means comprisinglocking devices whereby the cradle may le secured in lill'erent adjustedpositions relatively to said supporting member about a horizontal f iaxis and the worhhclder n'i'ay be secured in dillcrent mijns-tedpositions relatively to said cradle about a horizontal axis at rightantirst said horizontal anis.

i). ln a device oi the character described, in con'ibinatitm a base, acradle supported by saidlbasc and having' a scat ot substantiallyeloneal'ci'l quadrantal form and a bottoni oi elongated arcuatcd formsubstantially at right angles to said seat, means pcriniltimr around avertical axis and relatively to said base, a workholdcrliltcd to the.scat oli-said cradle tor :idjustmcnt. about a' horizontal axis, meansfor the said adjustable parts xn posiclampmgr n tions of diltcrentrelative adjustment and rack on said.

t whereby adjustment is and a substantially central vertical to permitadjustment, the means for in combination, a base,

manually operated feed device adapted tocoperate with said work holderto etlect its adjustment.

1U. In a device of the character described, in combination, a base, acradle supported therefrom, a work holder seating'in said cradle andhaving an arcuate base, means comprising locking elements tor` securingthe .vorlr holder ,in dilerent adjusted positions relatively to thecradle and means for holding; the Work holder to the. cradle when thelocking meansare unlocked.

llln a device of the character described, in combination a base adaptedto be attached to a milling tableor the like, intermediate supportiugmeans comprising a member interitting with said base to providetorvrotative movement thereon about an axis at right angles thereto, aworsholder. comprising,` a `table and means for fitting said table tosaid supporting means for rotative movement thereon abolita horizontalaxis, and means t'or locking the supporting means to the base and theworlholder to the supporting' means, which means are operable to unlocksaid elements fitting' the work-holder table to the supporting; meansbeing of a character to substantially prevent the ingress et dirtirrespective ot' the extent ot operation ot the locking` means inunlocking the elementsn 112. ln a device ot the character described, asupporting device thereon which is adjustable into different. positionsabout an axis at right angles to said base. a wollt-holder mounted onthe supporting device and connected thereto by means permitting relativerotative adjustment ot these elements about an axis at right. angles tothe first said axis, means for clamping the worlc--holdcr to thesupporting means in adjusted position and for 4unclamping same to permitfurther adjustnient, and a geared connection, hand operable; whereby therelative adiustn'unt ot the work-holder and the supporting` device maybe controlled, said geared connection being movable into or out ofetici-lire engagement at 'the will of the operator.

lll. ln a device ot the characte described, in combination, a basehaving a substan-v tially flat, attaching surface, a worloholder having'a substantially tial table, intermedi Yalie means comprising! a pair ofswivels at right. angles to cach other, an arcuate rack or gear on thcwork-holder. a hand operable gcar adapted to be engaged or disengagedwith the tiret said gear at the will of thc iuicrator, means i'orsecuring the workholder in ,liflereut positions ol' relativo adjustmentwith thc intermediate means, and (minori-ums between said intcrmtaliatemoans and the ivmlt-holdcr which permit oni;y a limited.scparalion'thereof ir 'espec- Mil i adjusted Ain combination, -yvhichit may be tive of the amount of operation of the securing means tounsecureithe parts.

14. In a device of the character described, a base comprising means bysecured to a table, supporting devices ,rotatably mounted upon said baseand adapted to be secured in different ositions about an axisextendingtransverse y of the plane of said table, a work-holder connected to saidsupporting devices and adapted to be secured in di'erent adjustedpositions about an axis extend-` ing transversely of the irst said axis,lmeans to secure vthe parts in different positions of adjustment asaforesaid, and means comprising a handle operated gearand a gear on theWork-holder for effecting the adjustmentof the latter, the connectionbetween the Work-holder and its supporting devices comprising means forpreventing the Workholder from falling away from the supporting devicesirrespective of the' operation of said securing means to unlock theparts.

15. In a device of thecharacter described,

in combination,

I.porting means and adapted to be a base comprising means by which itmay be a Work table, intermediate supporting means carried by the baseand `rotatable thereon into different positions of adjustment, awork-holder movable about an axis transverse to the 'axis of rotation ofthesupsecured in different positions of adjustment relatively secured infixed position n' to saidfsupporting mea-ns, means for securlng-saidwork-holderin adjusted positions,

means for effecting theadjustment between the Work-holder and itssupporting means comprising a hand operated geared connection, and aconnection between the Workholder and its supporting means whichrestricts them relatively against 5 substantial separation, irrespectiveof the operation of the-said securing means. v

Signed at Boston, in the county of Suf folk and State .of Massachusetts,lthis 27th day of-December, A. D. @916.

JOHNRJBECKETT.

